Saw-swaging machine



2. SheetsSheet 1.

(No Model.)

B. H. MILLER.v

- sAW SWAGING MACHINE.

Patented Sept; 20, 1887.

u. PETERS. Pholo-Lflhugraphcn wman m. n. c.

(No Model.) 2 Sheets-Sheet 2 B. H. MILLER.-

SAW SWAGING MACHINE. I

No. 370,367. Patented Sept. 20, 1887.

I ran 10% Tina PhblvUilwgnpher. Washington, 0.1:.

UNTTED STATES PATENT OFFICE.

BION H. MILLER, OF BAY CITY, MICHIGAN.

SAW-SWAGING MACHINE.

SPECIFICATION forming part of Letters Patent No. 370,367, dated September- 20, 1887.

Application filed February 3, 1887. Serial No. 226,355. (No model.)

To all whom it may concern:

Be it known that I, BIoN H. MILLER, of Bay City, in the county of Bay and State of Michigan, have invented new and useful Improvements in Saw-Swaging Machines; and I dohereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to new and useful improvements in the construction of sawswaging machines of that class intended for automatic operation; and the improvement consists in the novel construction, arrangement, and combination of the different parts as hereinafter described, and specifically set forth in the claims.

In the drawings which accompany this specification, Figure l is a front elevation of my improved machine. Fig. 2 is arear elevation thereof. Fig. 3 is a perspective view of the two part'adjustable frame, with some of the operating parts omitted to show more clearly the swaging-dics. Fig. 4 is an end view. Fig. 5 is a plan. Fig. 6 is a horizontal crosssection on line 3/ y in Fig. 1. Fig. 7 is an enlarged detail perspective of the bed-die or anvil.

A frame consisting of the horizontal bedplate A and of the vertical plate B supports the operating parts. The horizontal bed-plate A is secured upon a work-bench and forms a stationary rest for the saw. It is also provided with a suitable saw-guide, preferably in the form of a channel, 0, in the bed-plate, of suitable width to admit different thicknesses of saw-blades. The vertical plate B is adj ustably carried by the horizontal bed plate A by means of vertical standards D, engaging into the two-part clamping-boxes E, formed upon cutting-edge of the tooth is formed by the swaging-die. As this corner d forms the center of the pin H, it is clear that the die F may be adjusted to suit any angle of saw-tooth without disturbing its relative adjustment to the swagingdie. The die F projects from the face of the plate B; but a segmental annular flange, I, is formed on the latter to support the die F on the back. The pin H is further provided with a segmental portion, 9, of sufficient extent to form a side bearing for the sawtooth under operation. This portion also projects from the face of the plate B and is supported by a flange, I, form'ed on said plate. The movable die G is formed on the free end of alever, J, fulorumed upon a pivotpin, f, and provided with a retractingspring, g, and with an adjustable bearing-pin, h, which bears against the face of the eccentric K, thereby operating the movable die. The ec centric K is provided with a loose collar, 13.

The shaft j is journaled transversely in the plate B, and is provided upon its rearend with a feed-wheel, M, which is provided with a cam or crank pin, Z, by means of which the feed-lever is operated. This feed-lever consists'of a rock-arm, m, secured to a shaft, 12, and provided at its free end with an adjustable bearing-pin, o. The shaft 01 is j ournaled transversely in the plate B,and to the front end thereof is secured the oscillating feed-lever N, the lower end of which is provided with a fixed pin or finger, 19, arranged to engage with the teeth of the saw for the purpose of feeding it in the manner hereinafter described. This feed-lever N is provided with the toe 7*, which operatesin connection with an adjustable stop, .3, to regulate the oscillation of the feed-lever to the desired degree to feed the saw tooth by tooth, as hereinafter more fully explained. The feed-wheel M is provided with an annular cam-groove, 15, into which engages a pin, u, upon asliding shaft, 0. This shaft is journaled in the plate B, and is provided upon its front end with an arm, I. This arm P carries upon its lower end an outside side bearing, a, which acts in connection with the fixed side bearing e on the bed-die to clamp the saw-tooth under operation. The arm P is furthermore provided with another set of side bearings, w w, between which the saw passes after leaving the dies. The inside side bearing, w, is rigidly secured to the arm I, and the outside side bearing, w, is adjustably secured thereto.

The plate B is centrally and adj ustably supported by means of a hand-screw, R, which is swiveled into the lower end of the plate B and screw-threaded through the bed-plate A. In practice the back of the saw is placed in the channel of the plate A, and by means of the hand-screw R the dies are brought into proper relative position with the saw-teeth. Movement being given to the shaft j, the crank-pin Z on the wheel M, at each revolution of the wheel, produces, through the medium of the arm at and shaft a, the forward movement of the feed-lever, which is once for all so adjusted as to bring the saw-teeth into proper relative position with the dies. The retrac- "tion of the feed-lever is brought about by the stop 8 the required degree of retraction necessary to bring the feed-finger into engagement with the next tooth is obtained. Thus the feed can be easily regulated to suit the space of thesaw-teeth. Before the feed-lever,

however, executes its feeding movement the saw-blade is tilted automatically toward the front sufficiently far to clear the bed-die. This is caused by the sliding shaft 0, which is actuated at the proper time by the camgroove t, and causes the bearings w w, between which the saw-blade passes, to carry the upper portion of the saw away from the bed-die and keep it there, until the feeding movement is completed, after which the retraction of the sliding shaft restores the saw again into its proper position for swaging. The forward tilting of the saw engages the feed-finger between the saw-teeth, and the backward tilting disengages it therefrom, so as to render the feed-lever free to retract.

What I claim as my invention is- 1. In a saw-swaging machine, a frame consisting of a stationary bed-plate, which forms the saw-rest, and a vertically-adjustable plate, the swaging-dies carried by said adjustable plate, and feed devices on said vertical plate, substantially as described.

2. The eombination,with the stationary horizontal bed-plate constructed to form the sawrest, of avertical plate adjustably carried on vertical standards rising from the horizontal bed-plate, the dies and the feed device carried by said vertical plate, and a hand-screw for adjusting said plate, dies, and feed device, substantially as described.

3. In a saw-swaging machine, a stationary bed forming the saw-rest, a vertically-adj ustable plate carrying the dies, a stationary beddie, a movable swaging-die, a feeding device, and a saw-tilting device, all carried by said plate, substantially as described. I

4:. In a saW-swaging machine, the combination of a stationary bed formed with a channel forming the sawrest, a vertical plate adjustably supported on vertical standards of the stationary bed, a bed-die projecting from the face of the vertical plate and provided witha side bearing for the saw-tooth, a movable die fulcrumed to the vertical plate, an oscillating feed-lever having a rigid feed-finger, a movable outside bearing for the saw-tooth, and a combined movable outside and inside bearing for the saw-blade, arranged to tilt the saw on its bed, all carried by said vertical plate, substantially as described.

.5. The combination, with the plate B, of the segmental bed-die or anvil F, provided with the conical pin -H, adjustably seated in the saidplate,'and the nut 01., substantially as de scribed. 1

6. The combination, with the plate B, formed with flange I, of the segmental bed-die or anvil F, provided with conical pin H, adjustably seatedin said plate, and formed with side bearing, 6, and the nut a on the opposite end of said pin, substantially as described.

' 7. The combination of the crank-pin Z, the feed-wheel M, the rock-arm m, the lever N, having feedfingerp, the too 22, and the adjustable stop .9, all substantially as described.

8. The combination of the bed-plate A,

having channel 0, the vertical plate B, the

feed-wheel M, having cam-groove t, the sliding shaft O,having finger a, and the arm 1 having the hearings to w, substantially as described.

,9. The combination of the movable die G, the oscillating lever J, carrying said die, the

plate 13, shaftj, jonrnaled therein, the eecentric'or cam K on said shaft, and the rolling collar 2' on said cam, substantially as set forth.

10. The combination of the horizontal stationary bedplate A, having thechannel O, the vertical plate B, the bed-die F, provided with the inside bearing, 6, the sliding shaft 0, carrying the outside bearing, 1:, and the combined outside and inside bearings, w w, substantially as and for the purposes described.

B. H. MILLER.

Witnesses:

H. S. SPRAGUE, E. J. ScULLY. 

